connect rds using node

1var mysql = require('mysql');
2
3var connection = mysql.createConnection({
4  host     : process.env.RDS_HOSTNAME,
5  user     : process.env.RDS_USERNAME,
6  password : process.env.RDS_PASSWORD,
7  port     : process.env.RDS_PORT
8});
9
10connection.connect(function(err) {
11  if (err) {
12    console.error('Database connection failed: ' + err.stack);
13    return;
14  }
15
16  console.log('Connected to database.');
17});
18
19connection.end();